using GEOGTRAN

pStart = KnownCoordinateSystems.Geographic.World.WGS1984;
//Declares a new ProjectionInfo and allows the user to directly input a Proj4 sring
ProjectionInfo pEnd = new ProjectionInfo();
pEnd.ParseEsriString("PROJCS[\"Pulkovo_1942_Adj_1958_3_Degree_GK_Zone_7\",GEOGCS[\"GCS_Pulkovo_1942_Adj_1958\",DATUM[\"D_RT_1990\",SPHEROID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Gauss_Kruger\"],PARAMETER[\"False_Easting\",7500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",21.0],PARAMETER[\"Scale_Factor\",0.9999],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]");
But i need also to transform with